package dao.impl;

import java.sql.*;

/**
 * 所有DAO的父类
 */

public class BaseDAO {
    /**
     * 连接
     */
    protected Connection con;
    /**
     * SQL语句执行对象
     */
    protected PreparedStatement ps;
    /**
     * 结果集
     */
    protected ResultSet rs;

    public void setConnection() {
        try {
            Class.forName("com.mysql.cj.jdbc.Driver");
            con = DriverManager.getConnection("jdbc:mysql://asbdk.com:3306/ATM?serverTimezone=Asia/Shanghai&characterEncoding=utf8&useUnicode=true&useSSL=false",
                    "root", "lovo");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void closeConnection() {

        try {
            if (rs != null) {
                rs.close();
            }
            if (ps != null) {
                ps.close();
            }
            if (con != null) {
                con.close();
            }

        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
    }

}
